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50mm Celotex CW4050 Cavity Wall Insulation Board 1200mm x 450mm (5.94m2/Pack)

URN: 3002014

Product

Full Fill Partial Fill

Thickness

50mm 75mm 90mm 100mm 115mm 140mm
£58.51ex. VAT £9.85 per m2
£58.51ex. VAT
£9.85 per m2
Bulk Discount
10+ packs 15+ packs 15+ packs
£58.22ex. VAT £57.92ex. VAT £57.62ex. VAT
Coverage required
m
m
Based on your total area of m2 (inc. 10% wastage) - of these are required (actual coverage of m2)

We recommend purchasing at least 10% extra product to allow for errors, damages or obstacles

50mm Celotex CW4050 is specifically designed for use in partial-fill cavity wall applications. It features low emissivity foil facings for improved thermal performance in cavity air spaces.

Product

Full Fill Partial Fill

Thickness

50mm 75mm 90mm 100mm 115mm 140mm

Nationwide Delivery

Mon 28 Jul

Order by Monday at 2pm
  • 2days
  • 13hrs
  • 55mins
  • 4secs

Delivery & Returns Info

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Product Overview

50mm Celotex CW4050 is specifically designed for use in partial-fill cavity wall applications. It features low emissivity foil facings for improved thermal performance in cavity air spaces.

URN: 3002014
£58.51ex. VAT

Delivery & Returns Information

How Our Delivery Works

We work with a nationwide network of trusted suppliers. As a result, items in your basket may be supplied by different suppliers and delivered separately. Where this applies, you'll see multiple delivery charges at checkout. We always aim to group products from the same supplier to keep delivery costs as low as possible.

Delivery Areas & Charges

Delivery charges listed on our website apply to mainland UK, excluding the following postcode areas: AB, CF, DD, DG, KW, IV, LA, LD, LL, NP, PH, SA, SY
If your delivery address falls within one of these postcode areas, we’ll be in touch before processing your order to confirm any additional delivery costs.
Please note: We do not currently offer delivery outside the UK mainland.

Standard (Nationwide) Delivery

Insulation, Plasterboard and Drylining Products
ORDER VALUE DELIVERY CHARGE
Under £150 £40 ex. VAT
Between £150 - £350 ex. VAT £35 ex. VAT
Over £350 ex. VAT FREE
Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products
ORDER VALUE DELIVERY CHARGE
Under £100 £20 ex. VAT
Between £100 - £200 ex. VAT £10 ex. VAT
Over £200 ex. VAT FREE
Screws & Fixings and Adhesives & Sealants
ORDER VALUE DELIVERY CHARGE
Under £100 £7.50 ex. VAT
Over £100 ex. VAT FREE

Express Delivery

Express Delivery - Insulation and Plasterboard & Drylining
ORDER VALUE DELIVERY CHARGE
Under £400 £50 ex. VAT
Over £400 ex. VAT £35 ex. VAT
Express Delivery - Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products
ORDER VALUE DELIVERY CHARGE
Under £300 £50 ex. VAT
Over £300 ex. VAT £35 ex. VAT

View Full Delivery Policy

Returns

We offer a 30 day returns policy on any faulty products.

View Full Returns Policy

Key Features

  • Rigid partial fill cavity wall insulation
  • Aluminium composite facing on both sides
  • 0.022 W/mK thermal conductivity
  • Easy to handle and install
  • Zero Ozone Depletion Potential (ODP)
  • BBA certified

Technical Specification

Technical Specification
Product:Partial Fill
Material Type:PIR
Thickness:50mm
Width:450mm
Length:1200mm
Pieces Per Pack:11
Sales Unit:Pack
Sales Unit Coverage:5.94m2
Brand:Celotex
Manufacturer's Reference:CW4050
Weight:11.4kg
Thermal Conductivity:0.022W/mK

Technical Downloads

Warmth is imperative to comfort. With Celotex CW4050 Cavity Wall Insulation Board you can reduce undesirable heat loss, thus bringing energy bills down. Comprised of a PIR core sandwiched between low emissivity foil facings on both sides, these boards have an impressive thermal conductivity of just 0.022 W/mK.

Celotex 50mm cavity insulation is an insulation board aimed specifically at partial fill cavity wall applications. These cavity insulation batts fit snugly in between cavity wall ties, and are perfect for use in new builds and extensions with a masonry cavity wall construction.

Celotex 50mm cavity insulation is a high-performance BBA certified solution and is the leading brand in the market for PIR cavity wall insulation. Sized at 1200mm x 450mm, these conveniently sized boards are rigid, lightweight and easy to handle and install. They are also manufactured using blowing agents with low global warming potential (GWP) and zero ozone depletion potential (zero ODP). 


Celotex CW4050 Applications

Celotex 50mm cavity insulation is specifically designed for use in partial-fill cavity wall applications. As a high-performance insulation board featuring low emissivity foil facings, Celotex 50mm cavity insulation offers enhanced thermal performance when compared to typical PIR products.

These partial fill cavity batts are sized at 1200mm x 450mm to suit standard wall tie spacings (when using cavity tie clips for retention) and provide a closed joint with adjacent boards.

Celotex CW4050 Product Specifications

With gas and electric bills constantly on the rise, it has become more important than ever to improve the energy efficiency of our homes. By investing in partial-fill Celotex 50mm cavity insulation, you can reduce your energy bills and keep your home warmer for longer. It is a closed-cell, water repellent insulation board meaning not only will the boards provide weather-tight protection but moisture won't compromise insulation performance.

It is made from PIR (rigid polyisocyanurate), which has a thermal conductivity value of 0.022 W/mK. PIR is a good choice for homeowners who want to protect their homes from the elements and prevent air movement and heat loss in vulnerable exposure zones. PIR insulation promises durability and excellent thermal protection, better than that of most other building materials.

Let's check the specs:

  • Flanked by low emissivity aluminium foil facings on either side for improved thermal insulation performance in cavity air spaces
  • Can be fitted in new build or refurbishment insulation projects
  • CW4050 is British Board Approved (BBA) for use as partial fill insulation in cavity walls
  • Complies with building regulations for improving the thermal envelope of your home
  • Zero Ozone Depletion Potential (ODP) and Low Global Warming Potential (GWP)
  • Suitable for use in masonry cavity walls
  • BBA certified
  • BRE Green Guide Rating of A for sustainability
  • Board: 1200 x 450


Celotex CW4050 Certifications

Celotex 50mm cavity insulation is comprised of a PIR core and foil facings on either side. PIR is one of the most popular insulation materials on the market because it delivers excellent thermal protection at an affordable price. The insulation component of this Celotex board is given an A+ rating in comparison to the BRE Green Guide 2008.

Let's check the certifications:

  • Spread of flame: fire classification of Class E
  • Thermal conductivity of 0.022 W/m.K, reducing the thickness of insulation required to hit the target U-value - BS EN 12667
  • BRE Green Guide Rating of A for sustainability - which can assist in demonstrating environmental performance in your BREEAM assessments
  • BBA certified


Celotex 50mm cavity insulation delivers thinner solutions that meet target U-values as required by Building Regulations.

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